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pinctrl: cherryview: Convert chv_writel() to use chv_padreg() 

chv_writel() is now solely used for cases where we write data
to the PAD registers. In order to simplify callers, calculate
register address inside chv_writel().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
This commit is contained in:
Andy Shevchenko 2020-06-09 21:24:46 +03:00
parent 99fd651227
commit bfc8a4baec
1 changed files with 16 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

48
drivers/pinctrl/intel/pinctrl-cherryview.c
View File

@ -629,10 +629,12 @@ static u32 chv_readl(struct chv_pinctrl *pctrl, unsigned int pin, unsigned int o
return readl(chv_padreg(pctrl, pin, offset));
}
static void chv_writel(u32 value, void __iomem *reg)
static void chv_writel(struct chv_pinctrl *pctrl, unsigned int pin, unsigned int offset, u32 value)
{
void __iomem *reg = chv_padreg(pctrl, pin, offset);
/* Write and simple read back to confirm the bus transferring done */
writel(value, reg);
/* simple readback to confirm the bus transferring done */
readl(reg);
}
@ -758,7 +760,6 @@ static int chv_pinmux_set_mux(struct pinctrl_dev *pctldev,
for (i = 0; i < grp->npins; i++) {
int pin = grp->pins[i];
void __iomem *reg;
unsigned int mode;
bool invert_oe;
u32 value;
@ -773,21 +774,19 @@ static int chv_pinmux_set_mux(struct pinctrl_dev *pctldev,
invert_oe = mode & PINMODE_INVERT_OE;
mode &= ~PINMODE_INVERT_OE;
reg = chv_padreg(pctrl, pin, CHV_PADCTRL0);
value = chv_readl(pctrl, pin, CHV_PADCTRL0);
/* Disable GPIO mode */
value &= ~CHV_PADCTRL0_GPIOEN;
/* Set to desired mode */
value &= ~CHV_PADCTRL0_PMODE_MASK;
value |= mode << CHV_PADCTRL0_PMODE_SHIFT;
chv_writel(value, reg);
chv_writel(pctrl, pin, CHV_PADCTRL0, value);
/* Update for invert_oe */
reg = chv_padreg(pctrl, pin, CHV_PADCTRL1);
value = chv_readl(pctrl, pin, CHV_PADCTRL1) & ~CHV_PADCTRL1_INVRXTX_MASK;
if (invert_oe)
value |= CHV_PADCTRL1_INVRXTX_TXENABLE;
chv_writel(value, reg);
chv_writel(pctrl, pin, CHV_PADCTRL1, value);
dev_dbg(pctrl->dev, "configured pin %u mode %u OE %sinverted\n",
pin, mode, invert_oe ? "" : "not ");
@ -801,14 +800,12 @@ static int chv_pinmux_set_mux(struct pinctrl_dev *pctldev,
static void chv_gpio_clear_triggering(struct chv_pinctrl *pctrl,
unsigned int offset)
{
void __iomem *reg;
u32 value;
reg = chv_padreg(pctrl, offset, CHV_PADCTRL1);
value = chv_readl(pctrl, offset, CHV_PADCTRL1);
value &= ~CHV_PADCTRL1_INTWAKECFG_MASK;
value &= ~CHV_PADCTRL1_INVRXTX_MASK;
chv_writel(value, reg);
chv_writel(pctrl, offset, CHV_PADCTRL1, value);
}
static int chv_gpio_request_enable(struct pinctrl_dev *pctldev,
@ -817,7 +814,6 @@ static int chv_gpio_request_enable(struct pinctrl_dev *pctldev,
{
struct chv_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
unsigned long flags;
void __iomem *reg;
u32 value;
raw_spin_lock_irqsave(&chv_lock, flags);
@ -843,7 +839,6 @@ static int chv_gpio_request_enable(struct pinctrl_dev *pctldev,
/* Disable interrupt generation */
chv_gpio_clear_triggering(pctrl, offset);
reg = chv_padreg(pctrl, offset, CHV_PADCTRL0);
value = chv_readl(pctrl, offset, CHV_PADCTRL0);
/*
@ -853,13 +848,12 @@ static int chv_gpio_request_enable(struct pinctrl_dev *pctldev,
if ((value & CHV_PADCTRL0_GPIOCFG_MASK) ==
(CHV_PADCTRL0_GPIOCFG_HIZ << CHV_PADCTRL0_GPIOCFG_SHIFT)) {
value &= ~CHV_PADCTRL0_GPIOCFG_MASK;
value |= CHV_PADCTRL0_GPIOCFG_GPI <<
CHV_PADCTRL0_GPIOCFG_SHIFT;
value |= CHV_PADCTRL0_GPIOCFG_GPI << CHV_PADCTRL0_GPIOCFG_SHIFT;
}
/* Switch to a GPIO mode */
value |= CHV_PADCTRL0_GPIOEN;
chv_writel(value, reg);
chv_writel(pctrl, offset, CHV_PADCTRL0, value);
}
raw_spin_unlock_irqrestore(&chv_lock, flags);
@ -887,7 +881,6 @@ static int chv_gpio_set_direction(struct pinctrl_dev *pctldev,
unsigned int offset, bool input)
{
struct chv_pinctrl *pctrl = pinctrl_dev_get_drvdata(pctldev);
void __iomem *reg = chv_padreg(pctrl, offset, CHV_PADCTRL0);
unsigned long flags;
u32 ctrl0;
@ -898,7 +891,7 @@ static int chv_gpio_set_direction(struct pinctrl_dev *pctldev,
ctrl0 |= CHV_PADCTRL0_GPIOCFG_GPI << CHV_PADCTRL0_GPIOCFG_SHIFT;
else
ctrl0 |= CHV_PADCTRL0_GPIOCFG_GPO << CHV_PADCTRL0_GPIOCFG_SHIFT;
chv_writel(ctrl0, reg);
chv_writel(pctrl, offset, CHV_PADCTRL0, ctrl0);
raw_spin_unlock_irqrestore(&chv_lock, flags);
@ -998,7 +991,6 @@ static int chv_config_get(struct pinctrl_dev *pctldev, unsigned int pin,
static int chv_config_set_pull(struct chv_pinctrl *pctrl, unsigned int pin,
enum pin_config_param param, u32 arg)
{
void __iomem *reg = chv_padreg(pctrl, pin, CHV_PADCTRL0);
unsigned long flags;
u32 ctrl0, pull;
@ -1055,7 +1047,7 @@ static int chv_config_set_pull(struct chv_pinctrl *pctrl, unsigned int pin,
return -EINVAL;
}
chv_writel(ctrl0, reg);
chv_writel(pctrl, pin, CHV_PADCTRL0, ctrl0);
raw_spin_unlock_irqrestore(&chv_lock, flags);
return 0;
@ -1064,7 +1056,6 @@ static int chv_config_set_pull(struct chv_pinctrl *pctrl, unsigned int pin,
static int chv_config_set_oden(struct chv_pinctrl *pctrl, unsigned int pin,
bool enable)
{
void __iomem *reg = chv_padreg(pctrl, pin, CHV_PADCTRL1);
unsigned long flags;
u32 ctrl1;
@ -1076,7 +1067,7 @@ static int chv_config_set_oden(struct chv_pinctrl *pctrl, unsigned int pin,
else
ctrl1 &= ~CHV_PADCTRL1_ODEN;
chv_writel(ctrl1, reg);
chv_writel(pctrl, pin, CHV_PADCTRL1, ctrl1);
raw_spin_unlock_irqrestore(&chv_lock, flags);
return 0;
@ -1206,12 +1197,10 @@ static void chv_gpio_set(struct gpio_chip *chip, unsigned int offset, int value)
{
struct chv_pinctrl *pctrl = gpiochip_get_data(chip);
unsigned long flags;
void __iomem *reg;
u32 ctrl0;
raw_spin_lock_irqsave(&chv_lock, flags);
reg = chv_padreg(pctrl, offset, CHV_PADCTRL0);
ctrl0 = chv_readl(pctrl, offset, CHV_PADCTRL0);
if (value)
@ -1219,7 +1208,7 @@ static void chv_gpio_set(struct gpio_chip *chip, unsigned int offset, int value)
else
ctrl0 &= ~CHV_PADCTRL0_GPIOTXSTATE;
chv_writel(ctrl0, reg);
chv_writel(pctrl, offset, CHV_PADCTRL0, ctrl0);
raw_spin_unlock_irqrestore(&chv_lock, flags);
}
@ -1383,8 +1372,6 @@ static int chv_gpio_irq_type(struct irq_data *d, unsigned int type)
* Driver programs the IntWakeCfg bits and save the mapping.
*/
if (!chv_pad_locked(pctrl, pin)) {
void __iomem *reg = chv_padreg(pctrl, pin, CHV_PADCTRL1);
value = chv_readl(pctrl, pin, CHV_PADCTRL1);
value &= ~CHV_PADCTRL1_INTWAKECFG_MASK;
value &= ~CHV_PADCTRL1_INVRXTX_MASK;
@ -1402,7 +1389,7 @@ static int chv_gpio_irq_type(struct irq_data *d, unsigned int type)
value |= CHV_PADCTRL1_INVRXTX_RXDATA;
}
chv_writel(value, reg);
chv_writel(pctrl, pin, CHV_PADCTRL1, value);
}
value = chv_readl(pctrl, pin, CHV_PADCTRL0);
@ -1772,7 +1759,6 @@ static int chv_pinctrl_resume_noirq(struct device *dev)
for (i = 0; i < pctrl->community->npins; i++) {
const struct pinctrl_pin_desc *desc;
const struct chv_pin_context *ctx;
void __iomem *reg;
u32 val;
desc = &pctrl->community->pins[i];
@ -1782,19 +1768,17 @@ static int chv_pinctrl_resume_noirq(struct device *dev)
ctx = &pctrl->saved_pin_context[i];
/* Only restore if our saved state differs from the current */
reg = chv_padreg(pctrl, desc->number, CHV_PADCTRL0);
val = chv_readl(pctrl, desc->number, CHV_PADCTRL0);
val &= ~CHV_PADCTRL0_GPIORXSTATE;
if (ctx->padctrl0 != val) {
chv_writel(ctx->padctrl0, reg);
chv_writel(pctrl, desc->number, CHV_PADCTRL0, ctx->padctrl0);
dev_dbg(pctrl->dev, "restored pin %2u ctrl0 0x%08x\n",
desc->number, chv_readl(pctrl, desc->number, CHV_PADCTRL0));
}
reg = chv_padreg(pctrl, desc->number, CHV_PADCTRL1);
val = chv_readl(pctrl, desc->number, CHV_PADCTRL1);
if (ctx->padctrl1 != val) {
chv_writel(ctx->padctrl1, reg);
chv_writel(pctrl, desc->number, CHV_PADCTRL1, ctx->padctrl1);
dev_dbg(pctrl->dev, "restored pin %2u ctrl1 0x%08x\n",
desc->number, chv_readl(pctrl, desc->number, CHV_PADCTRL1));
}